Cable-clamp.



Y0. S. PROCTOR.

CABLE CLAMP.

APPUCATION FILED APR. 27, |915- I 1,269,507. Patented June 11, 1918.

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Toallwkomtma Application n led April 27,

coment.' Beit known t at I, Omi;4 S. Pnodron, citizen' of the United States, vand "resident of. New 'Yiork "in the county of New York and State fof ewYork, have invented cerv tain new and useful- Im 'n roveinents in Cable-f is produced Clamps, of which the "ollowingis aspecication. v l

This inventionrelates to' cable clamps in. whlich thecl'ampin ory-grippingpf the cable y by we gesjmovmg'inthe direction' of thegpull on the cable., 4 i

The preferred vtype herewith rshown rand described comprises two Vshells of identical shape and two wedges which are identical except that the lugs for `engaging theshells are right and left. v y.,

Each shell is formed forA a Vcertain size cable in the bottom, and has a lip "on one side and a corresponding groove' on the other, so when one` shell is turned over the lips and grooves are in operative position.

The purposes of this invention are:

1. To produce a clamp that can be quickly applied and removed;

2. To make a clamp that 'ps the cable in proportion to the force applileld to the cable;

3. To'make a clamp having a large bearing surface so that the cable will not be deformed orA marred. and break. from uneven strain on the strands;

4. To make a clamp with extra hard and rough surface engaging the cable by incorporating an abrasive material in the cable surface of the shell or wedge.

The superiority of this clamp overthe U-bolt clips and bolt clamps in common use more clearly shown in the detail descri tioil Vand description of operation.

lgure 1 is a side elevation and a sectional view of the clamp bled with cables; y

Fig. 2 is a sectional view on line a--b of 1 y ig. 8 -isaplan view on linea-d of Fig. 2. The shell 5 has a groove 6 formed on one side to engage the lug 7 formed 0n the shell 8. On the other side, the shell 8 has a groove 9 formed to engage the lug 10 formedV shells 5 and 8 are formed to -iit any cable 11 with which they are intended to be used, and the parts of the shells engaging the cable are provided with extra hard rough. surfaces by incorporating abrasive "closer together, thereby clamping the ca 1915. serial No. 24,339.

12 in the composition ofthe shells, 5 and 8. Whenk theshells are made of castin s this may be done by coating the core wit suitable abrasive material. .When the shells are Spcilmrion 0f Ltfr! lefwt-L, l' .Patented June 11, 1918.

forged,.high carbon crushed steel `,may bey l pressedv into the 'surface while hot and quicklyy cooled to reteinper the high `carboned crushed steel. The shell `5 is provided with lugs 13 and 14,.the shell 8 with lu s 15 and 1.6; theselugs are tostiiien the s ells and to aiford striking surface for driving together or separating.

Thewedge 17 is formed toi-it' the cable on one side and is provided with lugs 18,

and'.1'9 to engage the wall of the shell 8,

likewise the wedge 20 is provided with lugs 21 and 22 to engage the wall of the shell 5.

The cable surfaces of the wedges 17 and 2O are also treated with abrasive material 12.

The operation of this 'clamp is as follows: 'i `l ,The operator takes one shell in the left hand with the grooved side next the thumb; stands facing, with'the direction of pull on the rst cable, which is placed in this shell; he then drops the wedge on top of the cable with the lugs straddling the straight wall ofthe shell, and the thin end of the wedge is pointed forward; we may call this the rlght and wedge as the lugs look to the right.

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Next the 19s-, hand wedge is laid back' downv f on the cable already in place, with. the thin endpointed toward the operator and resting` on the point vof the right hand wedge, then .l

theother cable is laid and pressed down by the left thumb of the operator while with vhis right hand'the other shell is dropped down over the top, cable andwedge with the straight wall betweenthe lugs of the wedge; then with a shell, wedge and cablev assembled in each hand the" lugs and grooves of the shellsarebrou ht into o erative engage'-y ment and the sy ellsv force together as far by holding a heavy hammer against one shell coy , as possible by hand, and then driven h ome and driving the'other into it. The clamp I is removed by driving the. shells, which each carry a wedge and cable,v in the opposite' direction fromassembling. on the shell 5. The inside bottom of the It will be observed that any further relative movement of the cables in this clamp tends to pullthe thick ends of the wedgs e tighter; this tightening effect is. operative until the cable slips between the shell and wedgehence it is important that the cable surfaces of the shell and wedge be hard and rough.

I claim:

1. A clamping device comprising opposing relatively slidable shell members each having a guide `and-slide in operative relation one with the other, each shell having a cable receptacle adapted to receive a cable therein, two wedges each with one surface conformed to the cable, and means whereb each wedge is caused to move with the she 1 encompassing the cable thereby to grip the cable as ull is exerted thereon. p

2. `A c am ing device comprisin opposing relatively slidable and separable s ell members, means maintaining said shell members against lateral separation, each shellmember having a. groove formed therein adapted to receive a cable, a pair of wedges, each adapted to grip said cable and in operative relation with the wedge of the opposing shell.

3. A clamping device comprising opposing relatively shdable and separable shells,

means maintaining said shells against lateral separation, each shell having an internal cable groove formed to recelve a cabletherein, and a pair of wedges, each one operating in conjunction with `said shell and the cable therein adapted to grip the cable as pull is exerted. 4. A clam ing device comprisin oppos- 1ng relative y longitudinally slida le and separable shell -members having grooves, means formed therewith to resist lateral separation, said grooves being adapted to receive two opposed tension members, and a pair of wedges interposed between the tenlsnion members and walls of said shell mem- 5. A clamping device comprisin opposing relatively longitudinally slida le and separable concave shell members formed to resist lateral separation and adapted to retain two opposed tension members therein internally and a air of wedges interposed `between the tension members, and means whereby each wedge of the pair is caused to move with the shell inclosing thel cable.

Signed at New York, in the county of New Yorkand State of New York, this 24th day of April, A. D. 1915.

OLIN s. moeren.l

Witnesses:

Gao. C. CHENEY, WALDO M. CHAPIN. 

